Chemical Properties of Cyclononasiloxane, octadecamethyl- (CAS 556-71-8)

Cyclononasiloxane, octadecamethyl-

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InChI
InChI=1S/C18H54O9Si9/c1-28(2)19-29(3,4)21-31(7,8)23-33(11,12)25-35(15,16)27-36(17,18)26-34(13,14)24-32(9,10)22-30(5,6)20-28/h1-18H3
InChI Key
ISXOGOLHEGHGQF-UHFFFAOYSA-N
Formula
C18H54O9Si9
SMILES
C[Si]1(C)O[Si](C)(C)O[Si](C)(C)O[Si](C)(C)O[Si](C)(C)O[Si](C)(C)O[Si](C)(C)O[Si](C)(C)O[Si](C)(C)O1
Molecular Weight1
667.39
CAS
556-71-8
Other Names
  • Octadeamethyl-cyclononasiloxane
  • octadecamethylcyclononasiloxane
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Physical Properties

Property Value Unit Source
log10WS 13.27 Crippen Calculated Property
logPoct/wat 6.466 Crippen Calculated Property
Inp [1855.00; 1874.00]   Show Hide
Inp 1858.00 NIST
Inp 1871.00 NIST
Inp 1865.00 NIST
Inp 1866.00 NIST
Inp 1868.00 NIST
Inp 1869.00 NIST
Inp 1874.00 NIST
Inp 1874.00 NIST
Inp 1855.00 NIST
Inp 1865.00 NIST
Inp 1874.00 NIST
Inp 1858.00 NIST
Tfus 250.00 ± 1.00 K NIST

Temperature Dependent Properties

Property Value Unit Temperature (K) Source
ΔfusH 25.64 kJ/mol 246.20 NIST
ΔvapH [67.90; 68.00] kJ/mol [523.50; 525.50] Show Hide
ΔvapH 67.90 kJ/mol 523.50 NIST
ΔvapH 68.00 kJ/mol 525.50 NIST
Pvap [4.73e-04; 0.23] kPa [338.15; 418.15] Show Hide
Pvap 4.73e-04 kPa 338.15 Tempera...
Pvap 1.20e-03 kPa 348.15 Tempera...
Pvap 2.89e-03 kPa 358.15 Tempera...
Pvap 6.63e-03 kPa 368.15 Tempera...
Pvap 0.01 kPa 378.15 Tempera...
Pvap 0.03 kPa 388.15 Tempera...
Pvap 0.06 kPa 398.15 Tempera...
Pvap 0.12 kPa 408.15 Tempera...
Pvap 0.23 kPa 418.15 Tempera...

Similar Compounds

Cycloeicosasiloxane, tetracontamethyl. Cyclohexadecasiloxane, dotriacontamethyl. Cyclooctasiloxane, hexadecamethyl-. Cyclotetradecasiloxane, octacosamethyl. Cyclotridecasiloxane, hexacosamethyl. Cycloundecasiloxane, docosamethyl. Cycloheptasiloxane, tetradecamethyl-. Cyclopentadecasiloxane, triacontamethyl. Tetracosamethyl-cyclododecasiloxane. Cyclopentasiloxane, decamethyl-. Cyclononacosasiloxane, octapentacontamethyl. Cyclooctadecasiloxane, hexatriacontamethyl. Cyclotetrasiloxane, octamethyl-. Cyclotricosasiloxane, hexatetracontamethyl. Cycloheptadecasiloxane, tetratriacontamethyl.

Find more compounds similar to Cyclononasiloxane, octadecamethyl-.

Sources

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